Question 1

The rate of biological processes increases two to four times for each _____ increase in temperature

Accepted Answer

A)  12°C 
B)  10°C 
C)  8°C 
D)  5°C 
A)  12°C 
B)  10°C 
C)  8°C 
D)  5°C

Question 2

Which is NOT an adaptation that exploits the density of water?

Accepted Answer

A)  a gas-filled swim bladder 
B)  droplets of oil on algae 
C)  long, filamentous appendages 
D)  high percentages of fat 
A)  a gas-filled swim bladder 
B)  droplets of oil on algae 
C)  long, filamentous appendages 
D)  high percentages of fat

Question 3

What are some ways to prevent an aquarium from becoming anoxic?

Accepted Answer

An anoxic environment in an aquarium ref

Question 4

Why is liquid water important for the formation of life on Earth?

Accepted Answer

Liquid water is crucial for the formatio

Question 5

A smallmouth bass swimming in colder water of a springtime lake would likely expend _________ energy than when swimming in warmer water of the same lake during the summer (all things being equal).

Accepted Answer

A)  less 
B)  more 
C)  the same 
D)  There is no way to determine. 
A)  less 
B)  more 
C)  the same 
D)  There is no way to determine.

Question 6

The low density of ice

Accepted Answer

A)  makes it ineffective at insulating water from the cold. 
B)  allows aquatic plants to survive the winter. 
C)  is due to the high viscosity of water. 
D)  prevents it from moving in water. 
A)  makes it ineffective at insulating water from the cold. 
B)  allows aquatic plants to survive the winter. 
C)  is due to the high viscosity of water. 
D)  prevents it from moving in water.

Question 7

Which part of an organism is less dense than water?

Accepted Answer

A)  bone 
B)  protein 
C)  muscle 
D)  fat 
A)  bone 
B)  protein 
C)  muscle 
D)  fat

Question 8

What unique low-temperature challenge are marine organisms likely to encounter?

Accepted Answer

Marine organisms that live in cold envir

Question 9

Explain why thermal pollution is relatively rare in oceans.

Accepted Answer

Thermal pollution is relatively rare in

Question 10

Adding dissolved compounds such as salt to water _____ the boiling point and _____ the freezing point.

Accepted Answer

A)  increases; increases 
B)  increases; decreases 
C)  decrease; increases 
D)  decreases; decreases 
A)  increases; increases 
B)  increases; decreases 
C)  decrease; increases 
D)  decreases; decreases

Question 11

Which is a byproduct of anaerobic respiration?

Accepted Answer

A)  CO2 
B)  H2CO3 
C)  H2S 
D)  HCl 
A)  CO2 
B)  H2CO3 
C)  H2S 
D)  HCl

Question 12

Explain how osmotic regulation might make marine organisms better at surviving low temperatures than freshwater organisms.

Accepted Answer

Osmotic regulation in marine organisms a

Question 13

Organisms that can withstand high environmental temperatures without having their proteins denatured are termed

Accepted Answer

A)  endothermic. 
B)  exothermic. 
C)  thermophilic. 
D)  homeothermic. 
A)  endothermic. 
B)  exothermic. 
C)  thermophilic. 
D)  homeothermic.

Question 14

Hyperosmotic conditions

Accepted Answer

A)  cause low osmotic pressure. 
B)  occur in freshwater organisms. 
C)  cause active secretion in gills. 
D)  occur in arid landlocked lakes. 
A)  cause low osmotic pressure. 
B)  occur in freshwater organisms. 
C)  cause active secretion in gills. 
D)  occur in arid landlocked lakes.

Question 15

Fish obtain oxygen from the water through their gills using

Accepted Answer

A)  countercurrent circulation. 
B)  concurrent circulation. 
C)  unidirectional circulation. 
D)  recurrent circulation. 
A)  countercurrent circulation. 
B)  concurrent circulation. 
C)  unidirectional circulation. 
D)  recurrent circulation.

Question 16

Why do sharks retain urea rather than excrete it? How does this influence their fitness?

Accepted Answer

Sharks retain urea rather than excreting

Question 17

What enables thermophilic bacteria to withstand very high temperatures?

Accepted Answer

A)  high glycerol concentrations that protect cell membranes 
B)  low concentrations of isozymes that change form at high temperatures 
C)  cell materials that reduce heat transfer 
D)  high proportions of particular amino acids that form strong bonds 
A)  high glycerol concentrations that protect cell membranes 
B)  low concentrations of isozymes that change form at high temperatures 
C)  cell materials that reduce heat transfer 
D)  high proportions of particular amino acids that form strong bonds

Question 18

A liquid with low pH would have

Accepted Answer

A)  high OH- concentration. 
B)  low NO2 concentration. 
C)  low CaCO3 concentration. 
D)  high H+ concentration. 
A)  high OH- concentration. 
B)  low NO2 concentration. 
C)  low CaCO3 concentration. 
D)  high H+ concentration.

Question 19

Why is it important for organisms to osmoregulate?

Accepted Answer

A)  Organisms cannot survive in hyposmotic conditions. 
B)  Active transport requires large amounts of energy. 
C)  An imbalance in solutes disrupts cell functions. 
D)  High osmotic pressure can burst cell walls. 
A)  Organisms cannot survive in hyposmotic conditions. 
B)  Active transport requires large amounts of energy. 
C)  An imbalance in solutes disrupts cell functions. 
D)  High osmotic pressure can burst cell walls.

Question 20

Mangroves grow on salt-laden coastal mudflats that are inundated daily by high tides. Which of the following is NOT used by the plant to address the problem of water acquisition and elimination of excess salts?

Accepted Answer

A)  growing only when salt content of the coastal mudflats are at the season lowest levels 
B)  maintaining high concentrations of organic solutes in their roots 
C)  excluding salts from their roots by active transport 
D)  actively excreting salt from glands on the surfaces of their leaves 
A)  growing only when salt content of the coastal mudflats are at the season lowest levels 
B)  maintaining high concentrations of organic solutes in their roots 
C)  excluding salts from their roots by active transport 
D)  actively excreting salt from glands on the surfaces of their leaves

Exam 2: Adaptations to Aquatic Environments

The rate of biological processes increases two to four times for each _____ increase in temperature

Which is NOT an adaptation that exploits the density of water?

What are some ways to prevent an aquarium from becoming anoxic?

Why is liquid water important for the formation of life on Earth?

A smallmouth bass swimming in colder water of a springtime lake would likely expend _________ energy than when swimming in warmer water of the same lake during the summer (all things being equal).

The low density of ice

Which part of an organism is less dense than water?

What unique low-temperature challenge are marine organisms likely to encounter?

Explain why thermal pollution is relatively rare in oceans.

Adding dissolved compounds such as salt to water _____ the boiling point and _____ the freezing point.

Which is a byproduct of anaerobic respiration?

Explain how osmotic regulation might make marine organisms better at surviving low temperatures than freshwater organisms.

Organisms that can withstand high environmental temperatures without having their proteins denatured are termed

Hyperosmotic conditions

Fish obtain oxygen from the water through their gills using

Why do sharks retain urea rather than excrete it? How does this influence their fitness?

What enables thermophilic bacteria to withstand very high temperatures?

A liquid with low pH would have

Why is it important for organisms to osmoregulate?

Mangroves grow on salt-laden coastal mudflats that are inundated daily by high tides. Which of the following is NOT used by the plant to address the problem of water acquisition and elimination of excess salts?

Introduction: Ecology, Evolution, and the Scientific Method

Adaptations to Terrestrial Environments

Adaptations to Variable Environments

Climates and Soils

Terrestrial and Aquatic Biomes

Evolution and Adaptation

Life Histories

Reproductive Strategies

Social Behaviors

Population Distributions

Population Growth and Regulation

Population Dynamics Over Space and Time

Predation and Herbivory

Parasitism and Infectious Diseases

Competition

Mutualism

Community Structure

Community Succession

Movement of Energy in Ecosystems

Movement of Elements in Ecosystems

Landscape Ecology and Global Biodiversity

Global Conservation of Biodiversity

Filters

Exam 2: Adaptations to Aquatic Environments　

Adding dissolved compounds such as salt to water _ the boiling point and _ the freezing point.